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Szoszkiewicz A, Bukowska-Olech E, Jamsheer A. Molecular landscape of congenital vertebral malformations: recent discoveries and future directions. Orphanet J Rare Dis 2024; 19:32. [PMID: 38291488 PMCID: PMC10829358 DOI: 10.1186/s13023-024-03040-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/18/2023] [Accepted: 01/19/2024] [Indexed: 02/01/2024] Open
Abstract
Vertebral malformations (VMs) pose a significant global health problem, causing chronic pain and disability. Vertebral defects occur as isolated conditions or within the spectrum of various congenital disorders, such as Klippel-Feil syndrome, congenital scoliosis, spondylocostal dysostosis, sacral agenesis, and neural tube defects. Although both genetic abnormalities and environmental factors can contribute to abnormal vertebral development, our knowledge on molecular mechanisms of numerous VMs is still limited. Furthermore, there is a lack of resource that consolidates the current knowledge in this field. In this pioneering review, we provide a comprehensive analysis of the latest research on the molecular basis of VMs and the association of the VMs-related causative genes with bone developmental signaling pathways. Our study identifies 118 genes linked to VMs, with 98 genes involved in biological pathways crucial for the formation of the vertebral column. Overall, the review summarizes the current knowledge on VM genetics, and provides new insights into potential involvement of biological pathways in VM pathogenesis. We also present an overview of available data regarding the role of epigenetic and environmental factors in VMs. We identify areas where knowledge is lacking, such as precise molecular mechanisms in which specific genes contribute to the development of VMs. Finally, we propose future research avenues that could address knowledge gaps.
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Affiliation(s)
- Anna Szoszkiewicz
- Department of Medical Genetics, Poznan University of Medical Sciences, Rokietnicka 8, 60-806, Poznan, Poland.
| | - Ewelina Bukowska-Olech
- Department of Medical Genetics, Poznan University of Medical Sciences, Rokietnicka 8, 60-806, Poznan, Poland
| | - Aleksander Jamsheer
- Department of Medical Genetics, Poznan University of Medical Sciences, Rokietnicka 8, 60-806, Poznan, Poland.
- Centers for Medical Genetics GENESIS, Dąbrowskiego 77A, 60-529, Poznan, Poland.
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2
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El-Ashmawy NE, Khedr EG, Abo-Saif MA, Hamouda SM. Long noncoding RNAs as regulators of epithelial mesenchymal transition in breast cancer: A recent review. Life Sci 2024; 336:122339. [PMID: 38097110 DOI: 10.1016/j.lfs.2023.122339] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/28/2023] [Revised: 12/02/2023] [Accepted: 12/05/2023] [Indexed: 12/17/2023]
Abstract
AIMS Breast cancer (BC) is the most frequently occurring cancer in women worldwide. BC patients are often diagnosed at advanced stages which are characterized by low survival rates. Distant metastasis is considered a leading cause of mortalities among BC patients. Epithelial-to-mesenchymal transition (EMT) is a transdifferentiation program that is necessary for cancer cells to acquire metastatic potential. In the last decade, long noncoding RNAs (lncRNAs) proved their significant contribution to different hallmarks of cancer, including EMT and metastasis. The primary aim of our review is to analyze recent studies concerning the molecular mechanisms of lncRNAs implicated in EMT regulation in BC. MATERIALS AND METHODS We adopted a comprehensive search on databases of PubMed, Web of Science, and Google Scholar using the following keywords: lncRNAs, EMT, breast cancer, and therapeutic targeting. KEY FINDINGS The different roles of lncRNAs in the mechanisms and signaling pathways governing EMT in BC were summarized. LncRNAs could induce or inhibit EMT through WNT/β-catenin, transforming growth factor-β (TGF-β), Notch, phosphoinositide 3-kinase/protein kinase B (PI3K/AKT), signal transducer and activator of transcription 3 (STAT3), and nuclear factor kappa B (NF-κB) pathways as well as via their interaction with histone modifying complexes and miRNAs. SIGNIFICANCE LncRNAs are key regulators of EMT and BC metastasis, presenting potential targets for therapeutic interventions. Further research is necessary to investigate the practical application of lncRNAs in clinical therapeutics.
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Affiliation(s)
- Nahla E El-Ashmawy
- Faculty of Pharmacy, Tanta University, Al-Geish Street, Tanta, El-Gharbia, Egypt.
| | - Eman G Khedr
- Faculty of Pharmacy, Tanta University, Al-Geish Street, Tanta, El-Gharbia, Egypt.
| | - Mariam A Abo-Saif
- Faculty of Pharmacy, Tanta University, Al-Geish Street, Tanta, El-Gharbia, Egypt.
| | - Sara M Hamouda
- Faculty of Pharmacy, Tanta University, Al-Geish Street, Tanta, El-Gharbia, Egypt.
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3
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Nie Q, Cao H, Yang J, Liu T, Wang B. PI3K/Akt signalling pathway-associated long noncoding RNA signature predicts the prognosis of laryngeal cancer patients. Sci Rep 2023; 13:14764. [PMID: 37679508 PMCID: PMC10485045 DOI: 10.1038/s41598-023-41927-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2023] [Accepted: 09/04/2023] [Indexed: 09/09/2023] Open
Abstract
The PI3K/Akt signalling pathway is associated with the occurrence and development of tumours and significantly affects the prognosis of patients. We established a predictive signature based on the PI3K/Akt pathway to predict the prognosis of patients. The RNA-seq and clinical data of laryngeal cancer patients were downloaded from The Cancer Genome Atlas (TCGA) database. Three lncRNAs (MNX1-AS1, LINC00330, LSAMP-AS1) were selected through univariate, multivariate Cox and log-rank test analysis to establish a prognostic signature. The patients were then divided into high-risk and low-risk groups based on their risk score. In the TCGA training set, the survival time of the high-risk group was shorter than that of the low-risk group (P < 0.01). Follicular helper T cells were lower in the high-risk group (P = 0.022), and CCR, inflammation promotion, parainflammation, and type I IFN immune function were suppressed. The results of the drug sensitivity analysis suggest that the high-risk group is sensitive to AKT inhibitors. The establishment of the signature was also verified based on the clinical data. Three lncRNAs can facilitate the migration, invasion, and vitality of cancer cells in vitro, and vice versa. Moreover, p-AKT (Ser473) and p-PI3K were highly activated in the cells overexpressing the abovementioned three lncRNAs. The PI3K/Akt signalling pathway-associated prognosis signature has a good predictive effect.
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Affiliation(s)
- Qian Nie
- Department of Otorhinolaryngology, The Second Hospital of Hebei Medical University, Hebei, 050000, China
| | - Huan Cao
- Department of Otorhinolaryngology, The Second Hospital of Hebei Medical University, Hebei, 050000, China
| | - JianWang Yang
- Department of Otorhinolaryngology, The Second Hospital of Hebei Medical University, Hebei, 050000, China
| | - Tao Liu
- Department of Otorhinolaryngology, The Second Hospital of Hebei Medical University, Hebei, 050000, China
| | - Baoshan Wang
- Department of Otorhinolaryngology, The Second Hospital of Hebei Medical University, Hebei, 050000, China.
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4
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Gholami M, Klashami ZN, Ebrahimi P, Mahboobipour AA, Farid AS, Vahidi A, Zoughi M, Asadi M, Amoli MM. Metformin and long non-coding RNAs in breast cancer. J Transl Med 2023; 21:155. [PMID: 36849958 PMCID: PMC9969691 DOI: 10.1186/s12967-023-03909-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/06/2022] [Accepted: 01/21/2023] [Indexed: 03/01/2023] Open
Abstract
Breast cancer (BC) is the second most common cancer and cause of death in women. In recent years many studies investigated the association of long non-coding RNAs (lncRNAs), as novel genetic factors, on BC risk, survival, clinical and pathological features. Recent studies also investigated the roles of metformin treatment as the firstline treatment for type 2 diabetes (T2D) played in lncRNAs expression/regulation or BC incidence, outcome, mortality and survival, separately. This comprehensive study aimed to review lncRNAs associated with BC features and identify metformin-regulated lncRNAs and their mechanisms of action on BC or other types of cancers. Finally, metformin affects BC by regulating five BC-associated lncRNAs including GAS5, HOTAIR, MALAT1, and H19, by several molecular mechanisms have been described in this review. In addition, metformin action on other types of cancers by regulating ten lncRNAs including AC006160.1, Loc100506691, lncRNA-AF085935, SNHG7, HULC, UCA1, H19, MALAT1, AFAP1-AS1, AC026904.1 is described.
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Affiliation(s)
- Morteza Gholami
- Metabolic Disorders Research Center, Endocrinology and Metabolism Molecular-Cellular Sciences Institute, Tehran University of Medical Sciences, Tehran, Iran.,Endocrinology and Metabolism Research Center, Endocrinology and Metabolism Clinical Sciences Institute, Tehran University of Medical Sciences, Tehran, Iran
| | - Zeynab Nickhah Klashami
- Metabolic Disorders Research Center, Endocrinology and Metabolism Molecular-Cellular Sciences Institute, Tehran University of Medical Sciences, Tehran, Iran
| | - Pirooz Ebrahimi
- Department of Pharmacy, Health and Nutritional Sciences, University of Calabria, Arcavacata, Italy
| | | | - Amir Salehi Farid
- Endocrinology and Metabolism Research Center, Endocrinology and Metabolism Clinical Sciences Institute, Tehran University of Medical Sciences, Tehran, Iran
| | - Aida Vahidi
- Metabolic Disorders Research Center, Endocrinology and Metabolism Molecular-Cellular Sciences Institute, Tehran University of Medical Sciences, Tehran, Iran
| | - Marziyeh Zoughi
- Endocrinology and Metabolism Research Center, Endocrinology and Metabolism Clinical Sciences Institute, Tehran University of Medical Sciences, Tehran, Iran
| | - Mojgan Asadi
- Metabolomics and Genomics Research Center Endocrinology and Metabolism Molecular-Cellular Sciences Institute, Tehran University of Medical Sciences, Tehran, Iran
| | - Mahsa M Amoli
- Metabolic Disorders Research Center, Endocrinology and Metabolism Molecular-Cellular Sciences Institute, Tehran University of Medical Sciences, Tehran, Iran.
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Activation of MYO1G by lncRNA MNX1-AS1 Drives the Progression in Lung Cancer. Mol Biotechnol 2023; 65:72-83. [PMID: 35819746 DOI: 10.1007/s12033-022-00531-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/18/2021] [Accepted: 06/27/2022] [Indexed: 01/25/2023]
Abstract
Lung cancer represents the most prevalent cancer worldwide and causes the death of many patients. Cancer stem cells (CSCs), a subpopulation of cancer cells, have the capacities of self-renewal, unlimited proliferation, and multiple differentiation potential. The purpose of this study was to explore the potential role of long noncoding RNA (lncRNA) MNX1-AS1 on maintaining the stemness of CSC in lung cancer. CSCs were firstly sorted by flow cytometry. After the determination of the target of the present study using Gene Expression Omnibus dataset, MNX1-AS1was found to be highly expressed in lung cancer tissues and cells. Deletion of MNX1-AS1 inhibited proliferation, migration, invasion and sphere-forming abilities of CSC. Furthermore, subcellular fractionation, fluorescence in situ hybridization, RNA immunoprecipitation, and dual-luciferase experiments demonstrated that MNX1-AS1 recruited the transcription factor POU domain class 2 transcription factor 2 (POU2F2) to the nucleus and activated the myosin IG (MYO1G) expression. MYO1G overexpression partially reversed the si-MNX1-AS1-decreased stemness of CSCs. Finally, MNX1-AS1 suppression significantly repressed the growth of xenografts in vivo. Our study highlights the importance of the MNX1-AS1/POU2F2/MYO1G axis in stem cell-like properties of lung cancer cells.
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Wu Y, Wang Y, Yao H, Li H, Meng F, Li Q, Lin X, Liu L. MNX1-AS1, a c-Myc induced lncRNA, promotes the Warburg effect by regulating PKM2 nuclear translocation. JOURNAL OF EXPERIMENTAL & CLINICAL CANCER RESEARCH : CR 2022; 41:337. [PMID: 36476366 PMCID: PMC9727912 DOI: 10.1186/s13046-022-02547-3] [Citation(s) in RCA: 11] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 09/16/2022] [Accepted: 11/23/2022] [Indexed: 12/12/2022]
Abstract
BACKGROUND Altered glycolysis is the most fundamental metabolic change associated with the Warburg effect. Some glycolytic enzymes such as PKM2, the dominant pyruvate kinase in cancer cells, have been shown to engage in non-glycolytic functions that contribute to tumor metabolism. However, the precise mechanisms are not completely understood. METHODS The role of MNX1-AS1 in hepatocellular carcinoma progression was assessed both in vitro and in vivo. Northern blotting, RNA pulldown, mass spectrometry, RNA-binding protein immunoprecipitation, ChIP, luciferase reporter assays, RNA FISH and immunofluorescence staining were used to explore the detail molecular mechanism of MNX1-AS1 in hepatocellular carcinoma (HCC). RESULTS Here we dissect how MNX1-AS1, a long non-coding RNA (lncRNA), reinforces the Warburg effect through facilitating the non-glycolytic actions of PKM2 in the cell nucleus. We found that MNX1-AS1 expression was frequently overexpressed in HCC-derived cell lines and tissues compared to their normal hepatic cell counterparts, a finding consistent with its status as pan-cancer expressed lncRNA. In the context of HCC, we show MNX1-AS1 acts as a scaffold to promote interactions between PKM2 and importin α5. In response to EGFR activation, the resulting ternary complex drives the translocation of PKM2 into the nucleus. In consequence, glycolytic pathway components including key mediators of the Warburg effect (LDHA, GLUT1 and PDK1) are upregulated though the coactivator function of PKM2. Manipulating MNX1-AS1 elicited robust effects on glycolysis associated with marked changes in HCC growth in vitro and in xenograft models, indicative of the significant contribution of MNX1-AS1 to tumorigenic phenotypes. Moreover, while MNX1-AS1 expression is driven by c-Myc, its actions associated with PKM2 were shown to be downstream and independent of c-Myc. CONCLUSIONS Given the status of MNX1-AS1 as a pan-cancer upregulated lncRNA, this implicitly highlights the potential of targeting MNX1-AS1 to selectively counter the Warburg effect in a range of tumor types.
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Affiliation(s)
- Yang Wu
- grid.27255.370000 0004 1761 1174Cheeloo College of Medicine, Shandong University, Jinan, 250002 China ,grid.59053.3a0000000121679639Department of Hepatobiliary Surgery, The First Affiliated Hospital of USTC, Division of Life Sciences and Medicine, University of Science and Technology of China, Anhui Province Key Laboratory of Hepatopancreatobiliary Surgery, Anhui Provincial Clinical Research Center for Hepatobiliary Diseases, Hefei, 230001 China
| | - Yichun Wang
- grid.59053.3a0000000121679639Department of Hepatobiliary Surgery, The First Affiliated Hospital of USTC, Division of Life Sciences and Medicine, University of Science and Technology of China, Anhui Province Key Laboratory of Hepatopancreatobiliary Surgery, Anhui Provincial Clinical Research Center for Hepatobiliary Diseases, Hefei, 230001 China
| | - Hanhui Yao
- grid.59053.3a0000000121679639Department of Hepatobiliary Surgery, The First Affiliated Hospital of USTC, Division of Life Sciences and Medicine, University of Science and Technology of China, Anhui Province Key Laboratory of Hepatopancreatobiliary Surgery, Anhui Provincial Clinical Research Center for Hepatobiliary Diseases, Hefei, 230001 China
| | - Heng Li
- grid.27255.370000 0004 1761 1174Cheeloo College of Medicine, Shandong University, Jinan, 250002 China ,grid.59053.3a0000000121679639Department of Hepatobiliary Surgery, The First Affiliated Hospital of USTC, Division of Life Sciences and Medicine, University of Science and Technology of China, Anhui Province Key Laboratory of Hepatopancreatobiliary Surgery, Anhui Provincial Clinical Research Center for Hepatobiliary Diseases, Hefei, 230001 China
| | - Fanzheng Meng
- grid.59053.3a0000000121679639Department of Hepatobiliary Surgery, The First Affiliated Hospital of USTC, Division of Life Sciences and Medicine, University of Science and Technology of China, Anhui Province Key Laboratory of Hepatopancreatobiliary Surgery, Anhui Provincial Clinical Research Center for Hepatobiliary Diseases, Hefei, 230001 China
| | - Qidong Li
- grid.59053.3a0000000121679639Department of Hepatobiliary Surgery, The First Affiliated Hospital of USTC, Division of Life Sciences and Medicine, University of Science and Technology of China, Anhui Province Key Laboratory of Hepatopancreatobiliary Surgery, Anhui Provincial Clinical Research Center for Hepatobiliary Diseases, Hefei, 230001 China
| | - Xiansheng Lin
- grid.59053.3a0000000121679639Department of Hepatobiliary Surgery, The First Affiliated Hospital of USTC, Division of Life Sciences and Medicine, University of Science and Technology of China, Anhui Province Key Laboratory of Hepatopancreatobiliary Surgery, Anhui Provincial Clinical Research Center for Hepatobiliary Diseases, Hefei, 230001 China
| | - Lianxin Liu
- grid.27255.370000 0004 1761 1174Cheeloo College of Medicine, Shandong University, Jinan, 250002 China ,grid.59053.3a0000000121679639Department of Hepatobiliary Surgery, The First Affiliated Hospital of USTC, Division of Life Sciences and Medicine, University of Science and Technology of China, Anhui Province Key Laboratory of Hepatopancreatobiliary Surgery, Anhui Provincial Clinical Research Center for Hepatobiliary Diseases, Hefei, 230001 China
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Liu G, Zhang Y, Zhang X, Liu Y, Xu Y, Cui S, Li G, Wang J. LncRNA MNX1-AS1 contributes to lung adenocarcinoma progression by targeting the miR-34a/SIRT1 axis. Am J Transl Res 2022; 14:4977-4989. [PMID: 35958481 PMCID: PMC9360842] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/10/2022] [Accepted: 06/07/2022] [Indexed: 06/15/2023]
Abstract
LncRNA MNX1-AS1 is known to be involved in progression of several tumor types. However, few studies have investigated the molecular mechanism of MNX1-AS1 in lung adenocarcinoma (LAC). To explore the function of MNX1-AS1 in the pathogenesis of LAC, qRT-PCR was performed to show MNX1-AS1 expression. MNX1-AS1 expression in LAC cells was suppressed by siRNA to detect the biologic behavior. The relationships among miR-34a, MNX1-AS1 and SIRT1 were confirmed by pull-down and dual-luciferase reporter assay. Whether MNX1-AS1 was involved in LAC by targeting miR-34a/SIRT1 axis was verified. MNX1-AS1 was up-regulated in LAC, and over-expression of MNX1-AS1 was significantly associated with lymph node metastasis and poor prognosis. In A549 and H1299 cells, cell proliferation, migration, and invasion were suppressed, the cell cycle was regulated, as well as apoptosis was increased after silencing MNX1-AS1. Mechanistically, MNX1-AS1 served as a ceRNA of miR-34a to down-regulate miR-34a expression. SIRT1 is targeted by miR-34a and its expression is regulated by MNX1-AS1 and miR-34a. Up-regulation of SIRT1 salvaged the effect of silencing MNX1-AS1 on A549 and H1299 cells, to some extent. These results showed that MNX1-AS1 contributes to LAC progression by targeting the miR-34a/SIRT1 axis.
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Affiliation(s)
- Gaofeng Liu
- Department of Cardiothoracic Surgery, The 988th Hospital of PLA Joint Logistics SupportZhengzhou 450042, Henan, China
| | - Yong Zhang
- Department of Cardiothoracic Surgery, The 988th Hospital of PLA Joint Logistics SupportZhengzhou 450042, Henan, China
| | - Xiaozhen Zhang
- Department of Cardiothoracic Surgery, The 988th Hospital of PLA Joint Logistics SupportZhengzhou 450042, Henan, China
| | - Yan Liu
- Department of Cardiothoracic Surgery, The 988th Hospital of PLA Joint Logistics SupportZhengzhou 450042, Henan, China
| | - Yanbin Xu
- Department of Cardiothoracic Surgery, The 988th Hospital of PLA Joint Logistics SupportZhengzhou 450042, Henan, China
| | - Sujuan Cui
- Department of Cardiothoracic Surgery, The 988th Hospital of PLA Joint Logistics SupportZhengzhou 450042, Henan, China
| | - Gang Li
- Department of Cardiothoracic Surgery, The 988th Hospital of PLA Joint Logistics SupportZhengzhou 450042, Henan, China
| | - Jianjun Wang
- Department of Thoracic Surgery, Henan Provincial People’s Hospital, People’s Hospital of Zhengzhou University, People’s Hospital of Henan UniversityZhengzhou 450008, Henan, China
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Liang D, Tian C, Zhang X. lncRNA MNX1‑AS1 promotes prostate cancer progression through regulating miR‑2113/MDM2 axis. Mol Med Rep 2022; 26:231. [PMID: 35616155 PMCID: PMC9178709 DOI: 10.3892/mmr.2022.12747] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/07/2020] [Accepted: 04/26/2021] [Indexed: 11/17/2022] Open
Abstract
A growing number of dysregulated long non-coding (lnc)RNAs have been verified to serve an essential role in human prostate cancer. However, the underlying mechanisms of lncRNA MNX1 Antisense RNA 1 (MNX1-AS1) in prostate cancer has not been explored. Therefore, the present study aimed to explore the function of MNX1-AS1 in prostate cancer tumorigenesis and investigate the in-depth mechanism. The expression of MNX1-AS1, microRNA (miR)-2113 and murine double min 2 (MDM2) in prostate cancer tissues and corresponding normal tissues were assessed by reverse transcription-quantitative PCR. The protein expression levels of MDM2 were detected by western blotting. LNCaP and PC-3 cells were transfected with short hairpin (sh)-MNX1-AS1, miR-2113 mimics, miR-2113 inhibitor and pCDH-MDM2 vector using Lipofectamine® 3000. Cell proliferation, migration and invasion abilities were assessed by CCK-8 assay, colony formation and Transwell assay, respectively. Dual luciferase reporter assay was carried out to confirm the putative targets of MNX1-AS1 and miR-2113. Tumor formation experiment in nude mice was applied to evaluate the tumor growth effect of MNX1-AS1 in vivo. The expression of MNX1-AS1 was significantly upregulated in the prostate cancer tissues and cell lines. MNX1-AS1 knockdown suppressed the abilities of cell viability and migration and invasion in vitro and inhibited tumor growth in vivo. Additionally, luciferase reporter assay revealed that MNX1-AS1 could target miR-2113 and negatively interacted with miR-2113 in prostate cancer cells. miR-2113 directly targeted to MDM2 and negatively modulated the expression of MDM2. Rescue assays suggested that the viability, migration and invasion of impaired cells triggered by transfection with sh-MNX1-AS1 alone could be recovered by co-transfection with sh-MNX1-AS1 + miR-2113 inhibitor or sh-MNX1-AS1 + pCDH- MDM2 vector. The present study demonstrated that MNX1-AS1 promoted prostate cancer progression through regulating miR-2113/ MDM2 axis.
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Affiliation(s)
- Dong Liang
- Department of Urology Surgery, Binhai County Hospital of TCM, Yancheng, Jiangsu 224500, P.R. China
| | - Chuanjie Tian
- Department of Urology Surgery, Heqiao Hospital, Heqiao, Yixing, Jiangsu 214200, P.R. China
| | - Xiaowen Zhang
- Department of Urology Surgery, Zhongda Hospital, Southeast University, Nanjing, Jiangsu 210009, P.R. China
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LncRNA MNX1-AS1: A novel oncogenic propellant in cancers. Biomed Pharmacother 2022; 149:112801. [PMID: 35290890 DOI: 10.1016/j.biopha.2022.112801] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/19/2022] [Revised: 03/03/2022] [Accepted: 03/07/2022] [Indexed: 11/23/2022] Open
Abstract
To date, recent studies have shown that long non-coding RNAs (lncRNAs) are key players in gene regulation processes involved in cancer pathogenesis. In general, Motor neuron and pancreas homeobox 1-antisense RNA1 (MNX1-AS1) is highly expressed in all cancers as reported so far and exerts oncogenic effects through different mechanisms. In this review, we comprehensively summarize the detailed mechanisms of potential functions of MNX1-AS1 in different cancer types as well as the latest knowledge highlighting the potential of MNX1-AS1 as a therapeutic target for cancer. Aberrant expression of MNX1-AS1 closely correlates with clinicopathological parameters. such as lymphatic metastasis, tumor size, tumor stage, OS and DFS. Thus, MNX1-AS1 can be used as a diagnostic and prognostic biomarker or even a therapeutic prognostic target. This article reviews its function, molecular mechanism and clinical prognosis in various malignancies.
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Xie G, Jiang J, Sun Y. LDA-LNSUBRW: lncRNA-Disease Association Prediction Based on Linear Neighborhood Similarity and Unbalanced bi-Random Walk. IEEE/ACM TRANSACTIONS ON COMPUTATIONAL BIOLOGY AND BIOINFORMATICS 2022; 19:989-997. [PMID: 32870798 DOI: 10.1109/tcbb.2020.3020595] [Citation(s) in RCA: 17] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
Increasing number of experiments show that lncRNAs are involved in many biological processes, and their mutations and disorders are associated with many diseases. However, verifying the relationships between lncRNAs and diseases is time consuming and laborio. Searching for effective computational methods will contribute to our understanding of the underlying mechanisms of disease and identifying biomarkers of diseases. Therefore, we proposed a method called lncRNA-disease association prediction based on linear neighborhood similarity and unbalanced bi-random walk (LDA-LNSUBRW). Given that the known lncRNA-disease associations are rare, a pretreatment step should be performed to obtain the interaction possibility of unknown cases, so as to help us predict the potential associations. In the framework of leave-one-out cross-validation (LOOCV)and fivefold cross-validation (5-fold CV), LDA-LNSUBRW achieved effective performance with AUC of 0.8874 and 0.8632 ± 0.0051, respectively. The experimental results in this paper show that the proposed method is superior to five other state-of-the-art methods. In addition, case studies of three diseases (lung cancer, breast cancer, and osteosarcoma)were carried out to illustrate that LDA-LNSUBRW could predict the relevant lncRNAs.
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Zheng Y, Su L, Tan J, Dong F. Actinidia chinensis Planch Root extract suppresses the growth and metastasis of hypopharyngeal carcinoma by inhibiting E2F Transcription Factor 1-mediated MNX1 antisense RNA 1. Bioengineered 2022; 13:4911-4922. [PMID: 35152841 PMCID: PMC8973797 DOI: 10.1080/21655979.2022.2037226] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/02/2023] Open
Abstract
Increasing evidence has shown that traditional Chinese medicines and their bioactive components exert an anti-tumor effect, representing a novel treatment strategy. Actinidia chinensis Planch Root extracts (acRoots) have been reported to repress cancer cell proliferation and metastasis. The effect of acRoots on hypopharyngeal carcinoma progression was explored in this study. Firstly, data from MTT (3-(4,5-dimethylthiazol-2-yl)-2,5-diphenyltetrazolium bromide) and colony formation assays showed that incubation with accRoots reduced cell proliferation of hypopharyngeal carcinoma cells. Moreover, acRoots promoted the cell apoptosis of hypopharyngeal carcinoma. Secondly, cell migration and invasion of hypopharyngeal carcinoma cells were suppressed by acRoots. Thirdly, E2F1 (E2F Transcription Factor 1) and lncRNA MNX1-AS1 (MNX1 antisense RNA 1) were up-regulated in hypopharyngeal carcinoma tissues, and reduced in hypopharyngeal carcinoma cells post acRoots incubation. Overexpression of E2F1 attenuated acRoots-induced decrease in MNX1-AS1 in hypopharyngeal carcinoma cells. Lastly, administration with acRoots retarded in vivo hypopharyngeal carcinoma growth through down-regulation of E2F1-mediated MNX1-AS1. In conclusion, acRoots exerted tumor-suppressive role in hypopharyngeal carcinoma through inhibition of E2F1-mediated MNX1-AS1.
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Affiliation(s)
- Yi Zheng
- Medical College, Soochow University, Suzhou, China
- Head and Neck & Otolaryngology Center, Plastic Surgery Center, Cancer Center, Department of Otolaryngology, Zhejiang Provincial People’s Hospital, Affiliated People’s Hospital, Hangzhou Medical College, Hangzhou, China
| | - Lizhong Su
- Head and Neck & Otolaryngology Center, Plastic Surgery Center, Cancer Center, Department of Otolaryngology, Zhejiang Provincial People’s Hospital, Affiliated People’s Hospital, Hangzhou Medical College, Hangzhou, China
| | - Jun Tan
- Head and Neck & Otolaryngology Center, Plastic Surgery Center, Cancer Center, Department of Otolaryngology, Zhejiang Provincial People’s Hospital, Affiliated People’s Hospital, Hangzhou Medical College, Hangzhou, China
| | - Feilin Dong
- Head and Neck & Otolaryngology Center, Plastic Surgery Center, Cancer Center, Department of Otolaryngology, Zhejiang Provincial People’s Hospital, Affiliated People’s Hospital, Hangzhou Medical College, Hangzhou, China
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12
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Tang X, Sui X, Weng L, Liu Y. SNAIL1: Linking Tumor Metastasis to Immune Evasion. Front Immunol 2021; 12:724200. [PMID: 34917071 PMCID: PMC8669501 DOI: 10.3389/fimmu.2021.724200] [Citation(s) in RCA: 24] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/12/2021] [Accepted: 11/15/2021] [Indexed: 12/12/2022] Open
Abstract
The transcription factor Snail1, a key inducer of epithelial-mesenchymal transition (EMT), plays a critical role in tumor metastasis. Its stability is strictly controlled by multiple intracellular signal transduction pathways and the ubiquitin-proteasome system (UPS). Increasing evidence indicates that methylation and acetylation of Snail1 also affects tumor metastasis. More importantly, Snail1 is involved in tumor immunosuppression by inducing chemokines and immunosuppressive cells into the tumor microenvironment (TME). In addition, some immune checkpoints potentiate Snail1 expression, such as programmed death ligand 1 (PD-L1) and T cell immunoglobulin 3 (TIM-3). This mini review highlights the pathways and molecules involved in maintenance of Snail1 level and the significance of Snail1 in tumor immune evasion. Due to the crucial role of EMT in tumor metastasis and tumor immunosuppression, comprehensive understanding of Snail1 function may contribute to the development of novel therapeutics for cancer.
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Affiliation(s)
- Xiaolong Tang
- Department of Laboratory Medicine, Binzhou Medical University, Binzhou, China
| | - Xue Sui
- Department of Laboratory Medicine, Binzhou Medical University, Binzhou, China
| | - Liang Weng
- Department of Oncology, Xiangya Cancer Center, Xiangya Hospital, Central South University, Changsha, China.,Key Laboratory of Molecular Radiation Oncology Hunan Province, Xiangya Hospital, Central South University, Changsha, China.,Hunan International Science and Technology Collaboration Base of Precision Medicine for Cancer, Xiangya Hospital, Central South University, Changsha, China.,Hunan Provincial Clinical Research Center for Respiratory Diseases, Xiangya Hospital, Central South University, Changsha, China.,Institute of Gerontological Cancer Research, National Clinical Research Center for Gerontology, Changsha, China.,Center for Molecular Imaging of Central South University, Xiangya Hospital, Changsha, China
| | - Yongshuo Liu
- Department of Clinical Laboratory, Binzhou Medical University Hospital, Binzhou, China.,Biomedical Pioneering Innovation Center (BIOPIC), Beijing Advanced Innovation Center for Genomics, Peking-Tsinghua Center for Life Sciences, Peking University Genome Editing Research Center, State Key Laboratory of Protein and Plant Gene Research, School of Life Sciences, Peking University, Beijing, China
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13
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Klapproth C, Sen R, Stadler PF, Findeiß S, Fallmann J. Common Features in lncRNA Annotation and Classification: A Survey. Noncoding RNA 2021; 7:77. [PMID: 34940758 PMCID: PMC8708962 DOI: 10.3390/ncrna7040077] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/12/2021] [Revised: 12/03/2021] [Accepted: 12/06/2021] [Indexed: 12/29/2022] Open
Abstract
Long non-coding RNAs (lncRNAs) are widely recognized as important regulators of gene expression. Their molecular functions range from miRNA sponging to chromatin-associated mechanisms, leading to effects in disease progression and establishing them as diagnostic and therapeutic targets. Still, only a few representatives of this diverse class of RNAs are well studied, while the vast majority is poorly described beyond the existence of their transcripts. In this review we survey common in silico approaches for lncRNA annotation. We focus on the well-established sets of features used for classification and discuss their specific advantages and weaknesses. While the available tools perform very well for the task of distinguishing coding sequence from other RNAs, we find that current methods are not well suited to distinguish lncRNAs or parts thereof from other non-protein-coding input sequences. We conclude that the distinction of lncRNAs from intronic sequences and untranslated regions of coding mRNAs remains a pressing research gap.
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Affiliation(s)
- Christopher Klapproth
- Bioinformatics Group, Department of Computer Science, and Interdisciplinary Center for Bioinformatics, University of Leipzig, Härtelstraße 16-18, D-04107 Leipzig, Germany; (C.K.); (P.F.S.); (S.F.)
| | - Rituparno Sen
- Helmholtz Institute for RNA-Based Infection Research (HIRI), Helmholtz-Center for Infection Research (HZI), D-97080 Würzburg, Germany;
| | - Peter F. Stadler
- Bioinformatics Group, Department of Computer Science, and Interdisciplinary Center for Bioinformatics, University of Leipzig, Härtelstraße 16-18, D-04107 Leipzig, Germany; (C.K.); (P.F.S.); (S.F.)
- German Centre for Integrative Biodiversity Research (iDiv) Halle-Jena-Leipzig, Competence Center for Scalable Data Services and Solutions, and Leipzig Research Center for Civilization Diseases, University Leipzig, D-04103 Leipzig, Germany
- Max Planck Institute for Mathematics in the Sciences, Inselstraße 22, D-04103 Leipzig, Germany
- Institute for Theoretical Chemistry, University of Vienna, Währingerstraße 17, A-1090 Vienna, Austria
- Facultad de Ciencias, Universidad National de Colombia, Bogotá CO-111321, Colombia
- Santa Fe Institute, 1399 Hyde Park Rd., Santa Fe, NM 87501, USA
| | - Sven Findeiß
- Bioinformatics Group, Department of Computer Science, and Interdisciplinary Center for Bioinformatics, University of Leipzig, Härtelstraße 16-18, D-04107 Leipzig, Germany; (C.K.); (P.F.S.); (S.F.)
| | - Jörg Fallmann
- Bioinformatics Group, Department of Computer Science, and Interdisciplinary Center for Bioinformatics, University of Leipzig, Härtelstraße 16-18, D-04107 Leipzig, Germany; (C.K.); (P.F.S.); (S.F.)
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14
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Chen K, Gan JX, Huang ZP, Liu J, Liu HP. Clinical significance of long noncoding RNA MNX1-AS1 in human cancers: a meta-analysis of cohort studies and bioinformatics analysis based on TCGA datasets. Bioengineered 2021; 12:875-885. [PMID: 33685348 PMCID: PMC8291812 DOI: 10.1080/21655979.2021.1888596] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/03/2020] [Revised: 01/21/2021] [Accepted: 01/26/2021] [Indexed: 01/11/2023] Open
Abstract
MNX1-AS1 expression has been proposed to be abnormally upregulated in multiple human malignancies and be linked with the survival outcome of patients. However, relevant conclusions were yielded based on the limited samples. Therefore, we herein implemented a meta-analysis of the published cohort studies to further decipher the relationship of MNX1-AS1 level to prognosis and clinicopathological features in various cancers. Additionally, using The Cancer Genome Atlas (TCGA) datasets we carried out a bioinformatics analysis to make a further evaluation on the prognostic value of MNX1-AS1 expression. The results of meta-analysis indicated elevated MNX1-AS1 level closely correlated with poorer overall survival (OS) (HR = 1.97, 95% CI, 1.73-2.24; P < 0.00001), and disease-free survival (DFS) (HR = 2.24, 95% CI, 1.48-3.38; P = 0.0001) in cancers, which was confirmed by the bioinformatics analysis. Besides, it was observed the upregulated MNX1-AS1 level was significantly related to invasion depth, disease stage, tumor metastasis, and differentiation. Collectively, high MNX1-AS1 level correlated with poor survival outcome and aggressive clinicopathological characteristics in various cancers, suggesting that MNX1-AS1 may be applied as a prognostic marker and even a therapeutic target. Nevertheless, more high-quality studies designed with a large sample size should be conducted to further determine the clinical role of MNX1-AS1 in specific cancer types.
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Affiliation(s)
- Kang Chen
- Department of General Surgery, Lanzhou University Second Hospital, Lanzhou University, Lanzhou, China
| | - Jian-Xin Gan
- Department of General Surgery, Lanzhou University Second Hospital, Lanzhou University, Lanzhou, China
| | - Ze-Ping Huang
- Department of General Surgery, Lanzhou University Second Hospital, Lanzhou University, Lanzhou, China
| | - Jun Liu
- Department of Anesthesiology, The Third Affiliated Hospital, Sun Yat-sen University, Guangzhou, China
| | - Hai-Peng Liu
- Department of General Surgery, Lanzhou University Second Hospital, Lanzhou University, Lanzhou, China
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15
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The curcumin analog EF24 inhibits proliferation and invasion of triple-negative breast cancer cells by targeting the lncRNA HCG11/Sp1 axis. Mol Cell Biol 2021; 42:e0016321. [PMID: 34780286 DOI: 10.1128/mcb.00163-21] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023] Open
Abstract
EF24, a curcumin analog, exerts a potent anti-tumor effect on various cancers. However, whether EF24 retards the progression of triple-negative breast cancer (TNBC) remains unclear. In this study, we explored the role of EF24 in TNBC and clarified the underlying mechanism. In a mouse model of TNBC xenograft, EF24 administration reduced the tumor volume, suppressed cell proliferation, promoted cell apoptosis, and downregulated long non-coding RNA human leukocyte antigen complex group 11 (HCG11) expression. In TNBC cell lines, EF24 administration reduced cell viability, suppressed cell invasion, and downregulated HCG11 expression. HCG11 overexpression re-enhanced the proliferation and invasion of TNBC cell lines suppressed by EF24. The following mechanism research revealed that HCG11 overexpression elevated Sp1 transcription factor (Sp1) expression by reducing its ubiquitination, thereby enhanced Sp1-mediated cell survival and invasion in the TNBC cell line. Finally, the in vivo study showed that HCG11-overexpressed TNBC xenografts exhibited lower responsiveness in response to EF24 treatment. In conclusion, EF24 treatment reduced HCG11 expression, resulting in the degradation of Sp1 expression, thereby inhibiting the proliferation and invasion of TNBC cells.
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16
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Huang S, Sun Y. Long noncoding RNA MNX1-AS1 functions as a competing endogenous RNA to regulate epithelial-mesenchymal transition by sponging MiR-744-5p in colorectal cancer. Biosci Biotechnol Biochem 2021; 85:568-578. [PMID: 33590038 DOI: 10.1093/bbb/zbaa096] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/03/2020] [Accepted: 11/18/2020] [Indexed: 02/06/2023]
Abstract
Colorectal cancer (CRC) is the fourth most deadly cancer globally. Long noncoding RNA MNX1-AS1 has been proven to play a regulatory role in various human cancers. The present research aimed to explore the MNX1-AS1 function in CRC and the corresponding mechanism. A series of experiments were conducted to detect the effects of MNX1-AS1 and miR-744-5p on the biological function of CRC cells, including quantitative reverse transcription-polymerase chain reaction, CCK-8, transwell, wound healing assay, Western blot, and dual-luciferase report assay. MNX1-AS1 was elevated in CRC tissues and cell lines. Si-MNX1-AS1 inhibited cell viability, invasion, migration, and the protein expressions of N-cadherin and Vimentin but promoted the protein expression of E-cadherin. MiR-744-5p bound to MNX1-AS1. MiR-744-5p inhibitor had the opposite effect of si-MNX1-AS1. Cotransfection of miR-744-5p inhibitor and si-MNX1-AS1 recovered the effects mentioned above. In conclusion, MNX1-AS1/miR-744-5p axis plays a pivotal role in the viability, invasion, migration, and epithelial-mesenchymal transition of colorectal cancer cells.
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Affiliation(s)
- Shiping Huang
- Anorectal Department, The First Affiliated Hospital with Nanjing Medical University, Nanjing City, Jiangsu Province, China.,Nanjing Hospital of Chinese Medicine, Nanjing City, Jiangsu Province, China
| | - Yueming Sun
- Anorectal Department, The First Affiliated Hospital with Nanjing Medical University, Nanjing City, Jiangsu Province, China
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17
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Jantrapirom S, Koonrungsesomboon N, Yoshida H, M Candeias M, Pruksakorn D, Lo Piccolo L. Long noncoding RNA-dependent methylation of nonhistone proteins. WILEY INTERDISCIPLINARY REVIEWS-RNA 2021; 12:e1661. [PMID: 33913612 DOI: 10.1002/wrna.1661] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Received: 02/03/2021] [Revised: 03/18/2021] [Accepted: 04/04/2021] [Indexed: 12/15/2022]
Abstract
In the last decade, an intriguing new paradigm of regulation has emerged in which some transcripts longer than 200 nucleotides and no coding potential, long noncoding RNA (lncRNAs), exhibit the capability to control posttranslational modifications of nonhistone proteins in both invertebrates and vertebrates. The extent of such a regulation is still largely unknown. We performed a systematic review to identify and evaluate the potential impact of lncRNA-dependent methylation of nonhistone proteins. Collectively, these lncRNAs primarily act as scaffolds upon which methyltransferases (MTases) and targets are brought in proximity. In this manner, the N-MTase activity of EZH2, protein arginine-MTase 1/4/5, and SMYD2 is exploited to modulate the stability or the compartmentalization of several nonhistone proteins with roles in cell signaling, gene expression, and RNA processing. Moreover, these lncRNAs can indirectly affect the methylation of nonhistone proteins by transcriptional or posttranscriptional regulation of MTases. Strikingly, the lncRNAs/MTases/nonhistone proteins networking seem to be relevant to carcinogenesis and neurological disorders. This article is categorized under: Regulatory RNAs/RNAi/Riboswitches > Regulatory RNAs.
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Affiliation(s)
- Salinee Jantrapirom
- Department of Pharmacology, Faculty of Medicine, Chiang Mai University, Chiang Mai, Thailand.,Drosophila Center for Human Diseases and Drug Discovery (DHD), Faculty of Medicine, Chiang Mai University, Chiang Mai, Thailand
| | - Nut Koonrungsesomboon
- Department of Pharmacology, Faculty of Medicine, Chiang Mai University, Chiang Mai, Thailand.,Musculoskeletal Science and Translational Research Center (MSTR), Faculty of Medicine, Chiang Mai University, Chiang Mai, Thailand
| | - Hideki Yoshida
- Department of Applied Biology, Kyoto Institute of Technology, Kyoto, Japan
| | - Marco M Candeias
- MaRCU-Molecular and RNA Cancer Unit, Graduate School of Medicine, Kyoto University, Kyoto, Japan.,Department of Human Genetics, National Health Institute Dr Ricardo Jorge, Lisbon, Portugal
| | - Dumnoensun Pruksakorn
- Musculoskeletal Science and Translational Research Center (MSTR), Faculty of Medicine, Chiang Mai University, Chiang Mai, Thailand.,Department of Orthopedics, Faculty of Medicine, Chiang Mai University, Chiang Mai, Thailand.,Omics Center for Health Science, Faculty of Medicine, Chiang Mai University, Chiang Mai, Thailand
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18
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Ma B, Ren G, Xu J, Yin C, Shi Y. LncRNA MNX1-AS1 Contributes to Laryngeal Squamous Cell Carcinoma Growth and Migration by Regulating mir-744-5p/bcl9/β-Catenin Axis. Cell Transplant 2021; 30:9636897211005682. [PMID: 33821684 PMCID: PMC8033468 DOI: 10.1177/09636897211005682] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022] Open
Abstract
Increasing evidence has indicated that long noncoding RNAs (lncRNAs) are involved in the progression of laryngeal squamous cell carcinoma (LSCC). Here, we aimed to disclose the role of MNX1-AS1 in LSCC progression, and explore whether MNX1-AS1 participates in LSCC progression via targeting miR-744-5p to active BCL9/β-catenin signaling. Sixty-five human LSCC tissues and the paracancerous normal tissues were recruited to determine the levels of MNX1-AS1, miR-744-5p and BCL9 using qRT-PCR. The interaction of miR-744-5p and MNX1-AS1/BCL9 was determined by using the RNA immunoprecipitation (RIP) assay and/or luciferase gene reporter assay. Cell viability, in vivo tumor formation, invasion and migration abilities were detected by MTT, Xenograft models and Transwell assays. MNX1-AS1 level was increased significantly in human LSCC tissues as compared with the normal tissues, which showed a positive correlation with BCL9 level while a negative correlation with miR-744-5p level. High level of MNX1-AS1 predicted a poor prognosis and an advanced clinical process in LSCC patients. miR-744-5p targeted upregulation weakened the luciferase activity of MNX1-AS1 and /BCL9, and downregulated their expression levels-wt, while showed no effect when the binding sites were mutated. Knockdown of MNX1-AS1 markedly weakened cell viability, migration, and invasion abilities, while BCL9 overexpression abolished these tendencies. In addition, MNX1-AS1 downregulation induced decreases in tumor volumes and weights in vivo, accompanied by reductions in BCL9, Ki-67 and β-catenin expression and an increase in miR-744-5p expression. Collectively, this study reveals that MNX1-AS1 contributes to cell growth and migration by regulating miR-744-5p/BCL9/β-catenin axis in LSCC.
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Affiliation(s)
- Bingliang Ma
- Department of Otolaryngology, the First Affiliated Hospital, Huzhou University, the First People's Hospital of Huzhou, Huzhou City, Zhejiang Province, China
| | - Gang Ren
- Department of Otolaryngology, the First Affiliated Hospital, Huzhou University, the First People's Hospital of Huzhou, Huzhou City, Zhejiang Province, China
| | - Jue Xu
- Department of Otolaryngology, the First Affiliated Hospital, Huzhou University, the First People's Hospital of Huzhou, Huzhou City, Zhejiang Province, China
| | - Chenyi Yin
- Department of Otolaryngology, the First Affiliated Hospital, Huzhou University, the First People's Hospital of Huzhou, Huzhou City, Zhejiang Province, China
| | - Yuye Shi
- Department of Surgical Anesthesiology, the First Affiliated Hospital, Huzhou University, the First People's Hospital of Huzhou, Huzhou City, Zhejiang Province, China
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19
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Cui X, Yu H, Yu T, Xiao D, Wang X. LncRNA MNX1-AS1 drives aggressive laryngeal squamous cell carcinoma progression and serves as a ceRNA to target FoxM1 by sponging microRNA-370. Aging (Albany NY) 2021; 13:9900-9910. [PMID: 33882027 PMCID: PMC8064170 DOI: 10.18632/aging.202746] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/02/2020] [Accepted: 02/09/2021] [Indexed: 12/21/2022]
Abstract
Long non-coding RNA (LncRNA) MNX1 antisense RNA 1(MNX1-AS1) is associated with the pathology of numerous cancers. But, the role and underlying pathways of MNX1-AS1 in the regulation of laryngeal squamous cell carcinoma (LSCC) is not known. We demonstrated remarkably elevated levels of MNX1-AS1 in the LSCC tissues, which was correlated with poor disease prognosis. Moreover, MNX1-AS1-silencing strongly suppressed LSCC cell proliferation, migration, and invasion. We also demonstrated that MNX1-AS1 sequesters that activity of miR-370, thereby releasing Forkhead Box ml (FoxM1) from the inhibitory actions of MNX1-AS1. Furthermore, the positive correlation of MNX1-AS1 and FoxM1 as well as the converse correlation between miR-370 and MNX1-AS1 (or FoxM1) were revealed in LSCC tissues using experiments. Based on rescue assays, FoxM1 overexpression or miR-370 downregulation partially recovered the inhibitory effect of MNX1-AS1 silencing on LSCC cells. Moreover, knockdown of MNX1-AS1 retarded tumor growth in nude mice model. In summary, these findings verified that MNX1-AS1 modulated LSCC progression by competitively binding with miR-370 to regulate FoxM1.
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Affiliation(s)
- Xiangyan Cui
- Department of Otolaryngology-Head and Neck Surgery, The First Hospital of Jilin University, Changchun 130021, China
| | - Hong Yu
- Department of Otolaryngology-Head and Neck Surgery, The First Hospital of Jilin University, Changchun 130021, China
| | - Tingting Yu
- Department of Otolaryngology-Head and Neck Surgery, The First Hospital of Jilin University, Changchun 130021, China
| | - Dong Xiao
- Department of Otolaryngology-Head and Neck Surgery, The First Hospital of Jilin University, Changchun 130021, China
| | - Xin Wang
- Department of Otolaryngology-Head and Neck Surgery, The First Hospital of Jilin University, Changchun 130021, China
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20
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Xu M, Zhang X, Zhang S, Piao J, Yang Y, Wang X, Lin Z. SPOCK1/SIX1axis promotes breast cancer progression by activating AKT/mTOR signaling. Aging (Albany NY) 2020; 13:1032-1050. [PMID: 33293473 PMCID: PMC7835061 DOI: 10.18632/aging.202231] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/28/2020] [Accepted: 09/28/2020] [Indexed: 12/21/2022]
Abstract
SPOCK1 is highly expressed in many types of cancer and has been recognized as a promoter of cancer progression. Its regulatory mechanism in breast cancer (BC) remains unclear. This study aimed to explore the precise function of SPOCK1 in BC progression and to identify the mechanism by which SPOCK1 is involved in cell proliferation and epithelial-mesenchymal transition (EMT). Immunohistochemistry (IHC) experiments and database analysis showed that high expression of SPOCK1 was positively associated with histological grade, lymph node metastasis (LN) and poor clinical prognosis in BC. A series of in vitro and in vivo assays elucidated that altering the SPOCK1 level led to distinct changes in BC cell proliferation and metastasis. Investigations of potential mechanisms revealed that SPOCK1 interacted with SIX1 to enhance cell proliferation, cell cycle progression and EMT by activating the AKT/mTOR pathway, whereas inhibition of the AKT/mTOR pathway or depletion of SIX1 reversed the effects of SPOCK1 overexpression. Furthermore, SPOCK1 and SIX1 were highly expressed in BC and might indicate poor prognoses. Altogether, the SPOCK1/SIX1 axis promoted BC progression by activating the AKT/mTOR pathway to accelerate cell proliferation and promote metastasis in BC, so the SPOCK1/SIX1 axis might be a promising clinical therapeutic target for preventing BC progression.
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Affiliation(s)
- Ming Xu
- Department of Pathology and Cancer Research Center, Yanbian University Medical College, Yanji, China
| | - Xianglan Zhang
- Oral Cancer Research Institute, Yonsei University College of Dentistry, Seoul, South Korea
| | - Songnan Zhang
- Department of Oncology, Yanbian University Affiliated Hospital, Yanji, China
| | - Junjie Piao
- Department of Pathology and Cancer Research Center, Yanbian University Medical College, Yanji, China
| | - Yang Yang
- Department of Pathology and Cancer Research Center, Yanbian University Medical College, Yanji, China
| | - Xinyue Wang
- Department of Pathology and Cancer Research Center, Yanbian University Medical College, Yanji, China
| | - Zhenhua Lin
- Department of Pathology and Cancer Research Center, Yanbian University Medical College, Yanji, China
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21
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Zhang S, Li C, Zhang Z, Li Y, Li Q, Geng F, Liu J, Pan Y. Analysis of differentially expressed genes in oral epithelial cells infected with Fusobacterium nucleatum for revealing genes associated with oral cancer. J Cell Mol Med 2020; 25:892-904. [PMID: 33289330 PMCID: PMC7812288 DOI: 10.1111/jcmm.16142] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/07/2020] [Revised: 11/12/2020] [Accepted: 11/17/2020] [Indexed: 01/04/2023] Open
Abstract
Accumulating evidence links Fusobacterium nucleatum with tumorigenesis. Our previous study demonstrated that F. nucleatum infection can induce epithelial‐mesenchymal transition (EMT) in oral epithelial cells and elaborated a probable signal pathway involved in the induction of EMT. However, the comprehensive profiling and pathways of other candidate genes involved in F. nucleatum promoting malignant transformation remain largely elusive. Here, we analysed the transcriptome profile of HIOECs exposed to F. nucleatum infection. Totally, 3307 mRNAs (ǀLog2FCǀ >1.5) and 522 lncRNAs (ǀLog2FCǀ >1) were identified to be differentially expressed in F. nucleatum‐infected HIOECs compared with non‐infected HIOECs. GO and KEGG pathway analyses were performed to investigate the potential functions of the dysregulated genes. Tumour‐associated genes were integrated, and top 10 hub genes (FYN, RAF1, ATM, FOS, CREB, NCOA3, VEGFA, JAK2, CREM and ATF3) were identified by protein‐protein interaction (PPI) network, and Oncomine was used to validate hub genes' expression. LncRNA‐hub genes co‐expression network comprising 67 dysregulated lncRNAs were generated. Together, our study revealed the alteration of lncRNA and potential hub genes in oral epithelial cells in response to F. nucleatum infection, which may provide new insights into the shift of normal to malignant transformation initiated by oral bacterial infection.
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Affiliation(s)
- Shuwei Zhang
- Department of Periodontics, School and Hospital of Stomatology, China Medical University, Liaoning Provincial Key Laboratory of Oral Diseases, Shenyang, China
| | - Chen Li
- Department of Periodontics, School and Hospital of Stomatology, China Medical University, Liaoning Provincial Key Laboratory of Oral Diseases, Shenyang, China
| | - Zhiying Zhang
- Department of Periodontics, School and Hospital of Stomatology, China Medical University, Liaoning Provincial Key Laboratory of Oral Diseases, Shenyang, China
| | - Yuchao Li
- Department of Periodontics, School and Hospital of Stomatology, China Medical University, Liaoning Provincial Key Laboratory of Oral Diseases, Shenyang, China
| | - Qian Li
- Department of Oral Biology, School and Hospital of Stomatology, China Medical University, Liaoning Provincial Key Laboratory of Oral Diseases, Shenyang, China
| | - Fengxue Geng
- Department of Periodontics, School and Hospital of Stomatology, China Medical University, Liaoning Provincial Key Laboratory of Oral Diseases, Shenyang, China
| | - Junchao Liu
- Department of Periodontics, School and Hospital of Stomatology, China Medical University, Liaoning Provincial Key Laboratory of Oral Diseases, Shenyang, China
| | - Yaping Pan
- Department of Periodontics, School and Hospital of Stomatology, China Medical University, Liaoning Provincial Key Laboratory of Oral Diseases, Shenyang, China.,Department of Oral Biology, School and Hospital of Stomatology, China Medical University, Liaoning Provincial Key Laboratory of Oral Diseases, Shenyang, China
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22
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Shen S, Zhou H. Clinical effects and molecular mechanisms of lncRNA MNX1-AS1 in malignant tumors. Am J Transl Res 2020; 12:7593-7602. [PMID: 33312391 PMCID: PMC7724316] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/04/2020] [Accepted: 10/29/2020] [Indexed: 06/12/2023]
Abstract
With continuous disclosure of the significance of long non-coding RNAs (lncRNAs) in gene expression, the role of lncRNAs in malignant tumors has attracted extensive attention of scholars. Many types of studies found that lncRNA MNX1-AS1 is an over-expressed lncRNA in various malignant tumors. Results also indicate that MNX1-AS1 participates in the biological processes of cancers. Recent studies found that lncRNA MNX1-AS1 has high sensitivities and specificities in tumor tissues and plasma and may be a potential diagnostic biomarker and prognostic predictor. The biological functions of lncRNA MNX1-AS1 and its mechanisms of function in tumors were comprehensively reviewed in this article to lay a molecular foundation for future clinical applications of MNX1-AS1.
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Affiliation(s)
- Shen Shen
- Gene Hospital of Henan Province, Precision Medicine Center, The First Affiliated Hospital of Zhengzhou UniversityZhengzhou 450052, Henan, P. R. China
- Department of Infectious Diseases, The First Affiliated Hospital of Zhengzhou UniversityZhengzhou 450052, Henan, P. R. China
| | - Haojie Zhou
- Gene Hospital of Henan Province, Precision Medicine Center, The First Affiliated Hospital of Zhengzhou UniversityZhengzhou 450052, Henan, P. R. China
- Department of Infectious Diseases, The First Affiliated Hospital of Zhengzhou UniversityZhengzhou 450052, Henan, P. R. China
- Department of Oncology, Central Hospital of Xuhui DistrictShanghai 200030, Shanghai, P. R. China
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23
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LncRNA MNX1-AS1 promotes progression of intrahepatic cholangiocarcinoma through the MNX1/Hippo axis. Cell Death Dis 2020; 11:894. [PMID: 33093444 PMCID: PMC7581777 DOI: 10.1038/s41419-020-03029-0] [Citation(s) in RCA: 22] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/30/2020] [Revised: 08/13/2020] [Accepted: 09/09/2020] [Indexed: 02/06/2023]
Abstract
Long non-coding RNAs (lncRNAs) have extremely complex roles in the progression of intrahepatic cholangiocarcinoma (ICC) and remain to be elucidated. By cytological and animal model experiments, this study demonstrated that the expression of lncRNA MNX1-AS1 was remarkably elevated in ICC cell lines and tissues, and was highly and positively correlated with motor neuron and pancreas homeobox protein 1 (MNX1) expression. MNX1-AS1 significantly facilitated the proliferation, migration, invasion, and angiogenesis in ICC cells in vitro, and remarkably promoted tumor growth and metastasis in vivo. Further study revealed that MNX1-AS1 promoted the expression of MNX1 via recruiting transcription factors c-Myc and myc-associated zinc finger protein (MAZ). Furthermore, MNX1 upregulated the expression of Ajuba protein via binding to its promoter region, and subsequently, Ajuba protein suppressed the Hippo signaling pathway. Taken together, our results uncovered that MNX1-AS1 can facilitate ICC progression via MNX1-AS1/c-Myc and MAZ/MNX1/Ajuba/Hippo pathway, suggesting that MNX1-AS1 may be able to serve as a potential target for ICC treatment.
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Huo FC, Zhu WT, Liu X, Zhou Y, Zhang LS, Mou J. Epidermal growth factor-like domain multiple 6 (EGFL6) promotes the migration and invasion of gastric cancer cells by inducing epithelial-mesenchymal transition. Invest New Drugs 2020; 39:304-316. [PMID: 32949323 DOI: 10.1007/s10637-020-01004-2] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/06/2020] [Accepted: 09/13/2020] [Indexed: 02/07/2023]
Abstract
Epidermal growth factor-like domain multiple 6 (EGFL6) is implicated in tumor growth, metastasis and angiogenesis, and its ectopic alteration has been detected in aggressive malignancies. However, the pathophysiologic roles and molecular mechanisms of EGFL6 in gastric cancer (GC) remain to be elucidated. In this study, we investigated EGFL6 expression in GC cell lines and tissues using western blotting and immunohistochemistry. We found that EGFL6 was elevated expression in GC cell lines and tissues. The high expression of EGFL6 significantly was correlated with histological grade, depth of invasion, lymph node involvement, distant metastasis and TNM stage in GC and predicted poorer prognosis, and it could act an independent prognostic factor for GC patients. EGFL6 enhanced the proliferation, migration and invasion of GC cells. In addition, we identified the possible molecular mechanisms of EGFL6-involved epithelial-mesenchymal transition (EMT). EGFL6 regulated EMT process and induced metastasis partly through FAK/PI3K/AKT/mTOR, Notch and MAPK signaling pathways. In conclusion, EGFL6 confers an oncogenic function in GC progression and may be proposed as a potential therapeutic target for GC.
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Affiliation(s)
- Fu-Chun Huo
- Department of Pathology, Xuzhou Medical University, 209 Tong-shan Road, Xuzhou, 221004, Jiangsu, China
| | - Wen-Tao Zhu
- Department of Pathology, Xuzhou Medical University, 209 Tong-shan Road, Xuzhou, 221004, Jiangsu, China
| | - Xu Liu
- Department of general surgery, Xuzhou Children's Hospital, Xuzhou Medical University, Quan shan District, Xuzhou, 221000, Jiangsu, China
| | - Yun Zhou
- Department of Radiation Oncology, Xuzhou Central Hospital, Xuzhou, 221000, Jiangsu, China
| | - Lan-Sheng Zhang
- Department of Oncological Radiotherapy, the Second Affiliated Hospital of Xuzhou Medical University, Xuzhou, 221000, Jiangsu, China.
| | - Jie Mou
- Department of Pathology, Xuzhou Medical University, 209 Tong-shan Road, Xuzhou, 221004, Jiangsu, China.
- School of Pharmacy, Xuzhou Medical University, 209 Tong-shan Road, Xuzhou, 221004, Jiangsu, China.
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25
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Li J, Li Q, Li D, Shen Z, Zhang K, Bi Z, Li Y. Long Non-Coding RNA MNX1-AS1 Promotes Progression of Triple Negative Breast Cancer by Enhancing Phosphorylation of Stat3. Front Oncol 2020; 10:1108. [PMID: 32754442 PMCID: PMC7366902 DOI: 10.3389/fonc.2020.01108] [Citation(s) in RCA: 21] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/24/2020] [Accepted: 06/03/2020] [Indexed: 12/26/2022] Open
Abstract
Triple negative breast cancer (TNBC) accounts for less than a quarter of breast cancer but has the poorest survival outcome and is prone to relapse as well as metastasis due to its aggressiveness and lack of therapeutic target. Herein, we analyzed the TCGA datasets of lncRNA expressional profiles of breast cancer vs. normal tissue and TNBC vs. Non-TNBC subtypes and screened a long non-coding RNA (lncRNA) MNX1-AS1 overexpressing in TNBC. We found that MNX1-AS1 were upregulated in TNBC tumor tissues and correlated with poor survival outcome in TNBC patients. Silencing MNX1-AS1 reduced the aggressiveness of TNBC in vitro and in vivo. By using RNA pulldown assay followed by western blotting and RNA immunoprecipitation (RIP), we identified Stat3 was the MNX1-AS1 binding protein and MNX1-AS1 upregulated the phosphorylation of Stat3 by enhancing the interaction between p-JAK and Stat3. The present study suggested that targeting MNX1-AS1 may represent a promising therapeutic strategy to TNBC.
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Affiliation(s)
- Junhua Li
- Guangdong Provincial Key Laboratory of Malignant Tumor Epigenetics and Gene Regulation, Sun Yat-sen Memorial Hospital, Sun Yat-sen University, Guangzhou, China.,Department of Anesthesiology, Sun Yat-sen Memorial Hospital, Sun Yat-sen University, Guangzhou, China
| | - Qingjian Li
- Guangdong Provincial Key Laboratory of Malignant Tumor Epigenetics and Gene Regulation, Sun Yat-sen Memorial Hospital, Sun Yat-sen University, Guangzhou, China.,Department of Oncology, Sun Yat-sen Memorial Hospital, Sun Yat-sen University, Guangzhou, China
| | - Danhua Li
- Guangdong Provincial Key Laboratory of Malignant Tumor Epigenetics and Gene Regulation, Sun Yat-sen Memorial Hospital, Sun Yat-sen University, Guangzhou, China.,Department of Pediatrics, Sun Yat-sen Memorial Hospital, Sun Yat-sen University, Guangzhou, China
| | - Zhiwen Shen
- Guangdong Provincial Key Laboratory of Malignant Tumor Epigenetics and Gene Regulation, Sun Yat-sen Memorial Hospital, Sun Yat-sen University, Guangzhou, China.,Department of Anesthesiology, Sun Yat-sen Memorial Hospital, Sun Yat-sen University, Guangzhou, China
| | - Kun Zhang
- Guangdong Provincial Key Laboratory of Malignant Tumor Epigenetics and Gene Regulation, Sun Yat-sen Memorial Hospital, Sun Yat-sen University, Guangzhou, China.,Department of Anesthesiology, Sun Yat-sen Memorial Hospital, Sun Yat-sen University, Guangzhou, China
| | - Zhuofei Bi
- Guangdong Provincial Key Laboratory of Malignant Tumor Epigenetics and Gene Regulation, Sun Yat-sen Memorial Hospital, Sun Yat-sen University, Guangzhou, China.,Department of Radiation Oncology, Sun Yat-sen Memorial Hospital, Sun Yat-sen University, Guangzhou, China
| | - Yujuan Li
- Guangdong Provincial Key Laboratory of Malignant Tumor Epigenetics and Gene Regulation, Sun Yat-sen Memorial Hospital, Sun Yat-sen University, Guangzhou, China.,Department of Anesthesiology, Sun Yat-sen Memorial Hospital, Sun Yat-sen University, Guangzhou, China
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26
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Xia L, Zhu X, Zhang L, Xu Y, Chen G, Luo J. EZH2 enhances expression of CCL5 to promote recruitment of macrophages and invasion in lung cancer. Biotechnol Appl Biochem 2020; 67:1011-1019. [PMID: 31855281 PMCID: PMC7818479 DOI: 10.1002/bab.1875] [Citation(s) in RCA: 22] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/15/2019] [Accepted: 12/11/2019] [Indexed: 12/24/2022]
Abstract
EZH2 (enhancer of zeste homolog 2) regulates epigenetic gene silencing and functions as critical regulators in various tumor progression. Macrophages infiltration promotes cancer development via stimulating tumor cell migration and invasion. However, the effect of EZH2 on macrophages infiltration, cell invasion, and migration of lung cancer remains to be investigated. In this study, we found that knockdown of EZH2 inhibited macrophages chemotaxis and decreased chemokine ligand 5 (CCL5). Wound‐healing and transwell assays results showed that migration and invasion of lung cancer cells was inhibited by EZH2 deletion. Moreover, EZH2 overexpression increased CCL5 expression. Loss‐of functional assay indicated that the promotion ability of EZH2 on macrophages chemotaxis was inhibited by CCL5 knockdown. Mechanistically, the promotion ability of EZH2 on cell migration and invasion of lung cancer was also inhibited by CCL5 knockdown. The in vivo subcutaneous xenotransplanted tumor model also revealed that silence of EZH2 suppressed lung cancer metastasis and macrophages infiltration via regulation of CCL5. In conclusion, our findings indicated that EZH2 promoted lung cancer metastasis and macrophages infiltration via upregulation of CCL5, which might be the underlying mechanism of EZH2‐induced lung cancer cell progression.
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Affiliation(s)
- Lilong Xia
- Department of Thoracic Surgery, Zhejiang Hospital, Xihu district, Hangzhou, Zhejiang, 310000, China
| | - Xinhai Zhu
- Department of Thoracic Surgery, Zhejiang Hospital, Xihu district, Hangzhou, Zhejiang, 310000, China
| | - Lei Zhang
- Department of Thoracic Surgery, Zhejiang Hospital, Xihu district, Hangzhou, Zhejiang, 310000, China
| | - Yanhui Xu
- Department of Thoracic Surgery, Zhejiang Hospital, Xihu district, Hangzhou, Zhejiang, 310000, China
| | - Guoping Chen
- Department of Thoracic Surgery, Zhejiang Hospital, Xihu district, Hangzhou, Zhejiang, 310000, China
| | - Jing Luo
- Department of Thoracic Surgery, Zhejiang Hospital, Xihu district, Hangzhou, Zhejiang, 310000, China
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Shuai Y, Ma Z, Liu W, Yu T, Yan C, Jiang H, Tian S, Xu T, Shu Y. TEAD4 modulated LncRNA MNX1-AS1 contributes to gastric cancer progression partly through suppressing BTG2 and activating BCL2. Mol Cancer 2020; 19:6. [PMID: 31924214 PMCID: PMC6953272 DOI: 10.1186/s12943-019-1104-1] [Citation(s) in RCA: 88] [Impact Index Per Article: 22.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/30/2019] [Accepted: 11/12/2019] [Indexed: 01/13/2023] Open
Abstract
BACKGROUND Gastric cancer (GC) is the third leading cause of cancer-related mortality globally. Long noncoding RNAs (lncRNAs) are dysregulated in obvious malignancies including GC and exploring the regulatory mechanisms underlying their expression is an attractive research area. However, these molecular mechanisms require further clarification, especially upstream mechanisms. METHODS LncRNA MNX1-AS1 expression in GC tissue samples was investigated via microarray analysis and further determined in a cohort of GC tissues via quantitative reverse transcription polymerase chain reaction (qRT-PCR) assays. Cell proliferation and flow cytometry assays were performed to confirm the roles of MNX1-AS1 in GC proliferation, cell cycle regulation, and apoptosis. The influence of MNX1-AS1 on GC cell migration and invasion was explored with Transwell assays. A xenograft tumour model was established to verify the effects of MNX1-AS1 on in vivo tumourigenesis. The TEAD4-involved upstream regulatory mechanism of MNX1-AS1 was explored through ChIP and luciferase reporter assays. The mechanistic model of MNX1-AS1 in regulating gene expression was further detected by subcellular fractionation, FISH, RIP, ChIP and luciferase reporter assays. RESULTS It was found that MNX1-AS1 displayed obvious upregulation in GC tissue samples and cell lines, and ectopic expression of MNX1-AS1 predicted poor clinical outcomes for patients with GC. Overexpressed MNX1-AS1 expression promoted proliferation, migration and invasion of GC cells markedly, whereas decreased MNX1-AS1 expression elicited the opposite effects. Consistent with the in vitro results, MNX1-AS1 depletion effectively inhibited the growth of xenograft tumour in vivo. Mechanistically, TEAD4 directly bound the promoter region of MNX1-AS1 and stimulated the transcription of MNX1-AS1. Furthermore, MNX1-AS1 can sponge miR-6785-5p to upregulate the expression of BCL2 in GC cells. Meanwhile, MNX1-AS1 suppressed the transcription of BTG2 by recruiting polycomb repressive complex 2 to BTG2 promoter regions. CONCLUSIONS Our findings demonstrate that MNX1-AS1 may be able to serve as a prognostic indicator in GC patients and that TEAD4-activatd MNX1-AS1 can promote GC progression through EZH2/BTG2 and miR-6785-5p/BCL2 axes, implicating it as a novel and potent target for the treatment of GC.
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Affiliation(s)
- You Shuai
- Department of Medical Oncology, The First Affiliated Hospital of Nanjing Medical University, Nanjing, China
- Department of Medical Oncology, Jiangsu Cancer Hospital, Jiangsu Institute of Cancer Research, The Affiliated Cancer Hospital of Nanjing Medical University, Nanjing, Jiangsu, China
| | - Zhonghua Ma
- Key Laboratory of Carcinogenesis and Translational Research (Ministry of Education), Division of Gastrointestinal Cancer Translational Research Laboratory, Peking University Cancer Hospital and Institute, Beijing, China
| | - Weitao Liu
- NHC Key Laboratory of Glycoconjugates Research, Department of Biochemistry and Molecular Biology, School of Basic Medical Sciences, Shanghai Medical College of Fudan University, Shanghai, China
| | - Tao Yu
- Department of Medical Oncology, The First Affiliated Hospital of Nanjing Medical University, Nanjing, China
| | - Changsheng Yan
- Department of Gastroenterology, Institute for Microbial Ecology, School of Medicine, Xiamen University, Zhongshan Hospital, Xiamen University, Xiamen, China
| | - Hua Jiang
- Department of Oncology, The Affiliated Changzhou No.2 People's Hospital with Nanjing Medical University, Changzhou, 213003, Jiangsu, China
| | - Shengwang Tian
- Department of Oncology, JinTan People's Hospital, Jintan, 213200, China
| | - Tongpeng Xu
- Department of Medical Oncology, The First Affiliated Hospital of Nanjing Medical University, Nanjing, China.
| | - Yongqian Shu
- Department of Medical Oncology, The First Affiliated Hospital of Nanjing Medical University, Nanjing, China.
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28
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Fan CS, Chen LL, Hsu TA, Chen CC, Chua KV, Li CP, Huang TS. Endothelial-mesenchymal transition harnesses HSP90α-secreting M2-macrophages to exacerbate pancreatic ductal adenocarcinoma. J Hematol Oncol 2019; 12:138. [PMID: 31847880 PMCID: PMC6918594 DOI: 10.1186/s13045-019-0826-2] [Citation(s) in RCA: 27] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/02/2019] [Accepted: 11/13/2019] [Indexed: 12/15/2022] Open
Abstract
Background Endothelial-to-mesenchymal transition (EndoMT) can provide a source of cancer-associated fibroblasts which contribute to desmoplasia of many malignancies including pancreatic ductal adenocarcinoma (PDAC). We investigated the clinical relevance of EndoMT in PDAC, and explored its underlying mechanism and therapeutic implication. Methods Expression levels of 29 long non-coding RNAs were analyzed from the cells undergoing EndoMT, and an EndoMT index was proposed to survey its clinical associations in the PDAC patients of The Cancer Genome Atlas database. The observed clinical correlation was further confirmed by a mouse model inoculated with EndoMT cells-involved PDAC cell grafts. In vitro co-culture with EndoMT cells or treatment with the conditioned medium were performed to explore the underlying mechanism. Because secreted HSP90α was involved, anti-HSP90α antibody was evaluated for its inhibitory efficacy against the EndoMT-involved PDAC tumor. Results A combination of low expressions of LOC340340, LOC101927256, and MNX1-AS1 was used as an EndoMT index. The clinical PDAC tissues with positive EndoMT index were significantly correlated with T4-staging and showed positive for M2-macrophage index. Our mouse model and in vitro cell-culture experiments revealed that HSP90α secreted by EndoMT cells could induce macrophage M2-polarization and more HSP90α secretion to promote PDAC tumor growth. Furthermore, anti-HSP90α antibody showed a potent therapeutic efficacy against the EndoMT and M2-macrophages-involved PDAC tumor growth. Conclusions EndoMT cells can secrete HSP90α to harness HSP90α-overproducing M2-type macrophages to promote PDAC tumor growth, and such effect can be targeted and abolished by anti-HSP90α antibody.
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Affiliation(s)
- Chi-Shuan Fan
- National Institute of Cancer Research, National Health Research Institutes, No. 35, Keyan Road, Zhunan Township, 350, Miaoli, Taiwan
| | - Li-Li Chen
- National Institute of Cancer Research, National Health Research Institutes, No. 35, Keyan Road, Zhunan Township, 350, Miaoli, Taiwan
| | - Tsu-An Hsu
- Institute of Biotechnology and Pharmaceutical Research, National Health Research Institutes, No. 35, Keyan Road, Zhunan Township, 350, Miaoli, Taiwan
| | - Chia-Chi Chen
- National Institute of Cancer Research, National Health Research Institutes, No. 35, Keyan Road, Zhunan Township, 350, Miaoli, Taiwan
| | - Kee Voon Chua
- National Institute of Cancer Research, National Health Research Institutes, No. 35, Keyan Road, Zhunan Township, 350, Miaoli, Taiwan
| | - Chung-Pin Li
- Division of Gastroenterology and Hepatology, Department of Medicine, Taipei Veterans General Hospital, Taipei, Taiwan.,School of Medicine, National Yang-Ming University, Taipei, Taiwan
| | - Tze-Sing Huang
- National Institute of Cancer Research, National Health Research Institutes, No. 35, Keyan Road, Zhunan Township, 350, Miaoli, Taiwan. .,Department of Biochemistry, School of Medicine, Kaohsiung Medical University, Kaohsiung, Taiwan. .,Program in Tissue Engineering and Regenerative Medicine, Biotechnology Center, National Chung Hsing University, Taichung, Taiwan.
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29
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Yang J, Yu D, Liu X, Changyong E, Yu S. LncRNA PCED1B‐AS1 activates the proliferation and restricts the apoptosis of glioma through cooperating with miR‐194‐5p/PCED1B axis. J Cell Biochem 2019; 121:1823-1833. [PMID: 31680313 DOI: 10.1002/jcb.29417] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/02/2019] [Accepted: 10/08/2019] [Indexed: 12/18/2022]
Affiliation(s)
- Jinghui Yang
- Department of Hepatobiliary and Pancreatic Surgery China‐Japan Union Hospital of Jilin University Changchun China
| | - Duo Yu
- Department of Radiotherapy Second Hospital of Jilin University Changchun China
| | - Xueshibojie Liu
- Department of Otolaryngology Head and Neck Surgery, Second Hospital of Jilin University Changchun China
| | - E. Changyong
- Department of Hepatobiliary and Pancreatic Surgery China‐Japan Union Hospital of Jilin University Changchun China
| | - Shan Yu
- Department of Neurology China‐Japan Union Hospital of Jilin University Changchun China
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30
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LLCLPLDA: a novel model for predicting lncRNA-disease associations. Mol Genet Genomics 2019; 294:1477-1486. [PMID: 31250107 DOI: 10.1007/s00438-019-01590-8] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/15/2019] [Accepted: 06/21/2019] [Indexed: 12/19/2022]
Abstract
Long noncoding RNAs play a significant role in the occurrence of diseases. Thus, studying the relationship prediction between lncRNAs and disease is becoming more popular. Researchers hope to determine effective treatments by revealing the occurrence and development of diseases at the molecular level. However, the traditional biological experimental way to verify the association between lncRNAs and disease is very time-consuming and expensive. Therefore, we developed a method called LLCLPLDA to predict potential lncRNA-disease associations. First, locality-constrained linear coding (LLC) is leveraged to project the features of lncRNAs and diseases to local-constraint features, and then, a label propagation (LP) strategy is used to mix up the initial association matrix and the obtained features of lncRNAs and diseases. To demonstrate the performance of our method, we compared LLCLPLDA with five methods in the leave-one-out cross-validation and fivefold cross-validation scheme, and the experimental results show that the proposed method outperforms the other five methods. Additionally, we conducted case studies on three diseases: cervical cancer, gliomas, and breast cancer. The top five predicted lncRNAs for cervical cancer and gliomas were verified, and four of the five lncRNAs for breast cancer were also confirmed.
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31
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Chu J, Li H, Xing Y, Jia J, Sheng J, Yang L, Sun K, Qu Y, Zhang Y, Yin H, Wan J, He F. LncRNA MNX1-AS1 promotes progression of esophageal squamous cell carcinoma by regulating miR-34a/SIRT1 axis. Biomed Pharmacother 2019; 116:109029. [PMID: 31170665 DOI: 10.1016/j.biopha.2019.109029] [Citation(s) in RCA: 42] [Impact Index Per Article: 8.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/10/2019] [Revised: 05/21/2019] [Accepted: 05/21/2019] [Indexed: 12/15/2022] Open
Abstract
BACKGROUND Long non-coding RNAs (lncRNAs) are powerful factors influencing the tumorigenesis and metastasis of multiple carcinomas. LncRNA MNX1-AS1 plays critical roles in the progression of tumor formation according to recent research, while its roles in esophageal squamous cell carcinoma (ESCC) remains unknown. METHODS The expression levels of lncRNA MNX1-AS1 were examined in ESCC tissues by quantitative reverse transcriptase polymerase chain reaction (qRT-PCR). The role of lncRNA MNX1-AS1 was performed by WST-1 proliferation assays, migration and invasion assays. Besides, the molecular mechanism of lncRNA MNX1-AS1 was verified by online bioinformatics, qRT-PCR and rescue assays. RESULTS MNX1-AS1 was signifcantly upregulated in ESCC tissues. It was conformed that high MNX1-AS1 expression was associated with ESCC lymph node metastasis. Moreover, we found that knockdown of MNX1-AS1 apparently suppressed the cell proliferation, migration, and invasion capacity. Flow cytometry analysis showed MNX1-AS1 regulated ESCC cell cycle and apoptosis progression. Mechanism analysis revealed that miR-34a inhibitor could rescue the influence of inhibiting MNX1-AS1 on ESCC cells migration by serving as competing endogenous RNA (ceRNAs). Furthermore, we found that miR-34a specifically targeted SIRTI. CONCLUSIONS Taken together, we demonstrated that lncRNA MNX1-AS1/miR-34a/SIRT1 regulatory axis could play an important role in ESCC progression, and MNX1-AS1 may act as a novel potential biomarker for esophageal squamous cell carcinoma.
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Affiliation(s)
- Jie Chu
- Department of Medical Laboratory, The First Affiliated Hospital, Zhengzhou University, Zhengzhou, Henan Province, China.
| | - Hongle Li
- Department of Molecular Pathology, The Affiliated Cancer Hospital, Zhengzhou University, Zhengzhou, Henan Province, China.
| | - Yurong Xing
- Department of Physical Examination, The First Affiliated Hospital, Zhengzhou University, Zhengzhou, Henan Province, China.
| | - Jinlin Jia
- Department of Medical Laboratory, The First Affiliated Hospital, Zhengzhou University, Zhengzhou, Henan Province, China.
| | - Jinxiu Sheng
- Department of Medical Laboratory, The First Affiliated Hospital, Zhengzhou University, Zhengzhou, Henan Province, China.
| | - Lijun Yang
- Department of Medical Laboratory, The First Affiliated Hospital, Zhengzhou University, Zhengzhou, Henan Province, China.
| | - Kaiyan Sun
- Department of Medical Laboratory, The First Affiliated Hospital, Zhengzhou University, Zhengzhou, Henan Province, China.
| | - Yunhui Qu
- Department of Medical Laboratory, The First Affiliated Hospital, Zhengzhou University, Zhengzhou, Henan Province, China.
| | - Yan Zhang
- Department of Medical Laboratory, The First Affiliated Hospital, Zhengzhou University, Zhengzhou, Henan Province, China.
| | - Huiqing Yin
- Department of Medical Laboratory, The First Affiliated Hospital, Zhengzhou University, Zhengzhou, Henan Province, China.
| | - Junhu Wan
- Department of Medical Laboratory, The First Affiliated Hospital, Zhengzhou University, Zhengzhou, Henan Province, China.
| | - Fucheng He
- Department of Medical Laboratory, The First Affiliated Hospital, Zhengzhou University, Zhengzhou, Henan Province, China.
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